fix(aidocs): correct smartconfig file handling and tighten TypeScript typings

ts/aidocs_classes/projectcontext.ts

@@ -26,7 +26,7 @@ export class ProjectContext {
       plugins.path.join(this.projectDir, 'readme.hints.md'),
       this.projectDir,
     );
-    const smartfilesNpmextraJSON = await plugins.smartfileFactory.fromFilePath(
+    const smartfilesSmartconfigJSON = await plugins.smartfileFactory.fromFilePath(
       plugins.path.join(this.projectDir, '.smartconfig.json'),
       this.projectDir,
     );
@@ -40,7 +40,7 @@ export class ProjectContext {
       smartfilePackageJSON,
       smartfilesReadme,
       smartfilesReadmeHints,
-      smartfilesNpmextraJSON,
+      smartfilesSmartconfigJSON,
       smartfilesMod,
       smartfilesTest,
     };
@@ -80,7 +80,7 @@ ${smartfile.contents.toString()}
       files.smartfilePackageJSON,
       files.smartfilesReadme,
       files.smartfilesReadmeHints,
-      files.smartfilesNpmextraJSON,
+      files.smartfilesSmartconfigJSON,
       ...files.smartfilesMod,
       ...files.smartfilesTest,
     ]);